Home / 20,904,284.80-31,356,427.20-13,251,534.40

Finding the Fourth Proportional to 20,904,284.80, 31,356,427.20 and 13,251,534.40

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Solution

The fourth proportional to 20,904,284.80, 31,356,427.20 and 13,251,534.40 is: 19,877,301.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904,284.80 : 31,356,427.20 = 13,251,534.40 : x
  2. Step 2: Convert to fraction form
    20,904,284.80/31,356,427.20 = 13,251,534.40/x
  3. Step 3: Cross multiply
    20,904,284.80x = 31,356,427.20 × 13,251,534.40
  4. Step 4: Simplify right side
    20,904,284.80x = 415,520,773,701,895.69
  5. Step 5: Solve for x
    x = 415,520,773,701,895.69/20,904,284.80
  6. Step 6: Final answer
    x = 19,877,301.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.